Cultivator attachment.



Patented Dec. 21, 1915.

UNITE orrrcn CLIFTON DOAK, 0 F SNYDER, TEXAS.

CULTIVATOR ATTACHMENT.

To all whom it may concern Be it known that I, CLIFTON Donn, a cit1- zen of the United States of America, residing at Snyder, in the county of Scurry and to the supporting frame of a cultivator in such a manner as to efficiently cut the weeds and dig into the soil without injuring the plants which may pass therebetween.

Another object of this invention is the production of a plurality of cutter blades for a cultivator which have substantially V-shaped bodies, these bodies being so formed as to allow the plants which are being cultivated to pass therebetween, whereby the weeds will strike upon the side edges thereof so as to be severed.

Another object of this invention is the production of a plurality of blades for a cultivator, each of the blades being formed from a blank and bent to constitute a U-shaped structure having attaching portions extend ing therefrom so as to allow the blades to be adjustably secured to the cultivator.

'With these and other objects in view this invention consists of certain novel combinations, constructions, I and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings :Figure 1 is a detail perspective view of a cultivator showing the attachment carried thereby. Fig. 2 is a detail perspective View of one of the adjusting clips. Fig. 3 is a vertical section through the forward portion of one of the blades showing the manner in which the same is carried. FigA is a fragementary longitudinal section of one of the blades illustrating-how the blade is adjustably secured intermediate its ends.

Referring to the accompanying drawings by numerals 1 designates in general a cultivator having the cultivator beams 2 extending therefrom. These cultivator beams 2 carry the clamps 3 which are provided with the set screws 4. A link 5 is slidably mounted upon each clamp 3 and is adapted to be held in an adjusted position by means Specification of Letters Patent.

Patented Dec. 21, 1915.

Application filed October 10, 1914. Serial No. 866,073.

of the screw A. Intermediate the ends of each bar 2 there is also carried a secondary clamp 6 having the retaining screw 7 for carrying the standard 8.

y The attachments comprise a plurality of blades each of which is formed from a blank and comprise elongated side arms 9 having the finger 10 extending at an acute angle therefrom to form a substantially V-shaped structure. It will be noted, however, that each arm 9 is considerably longer than the finger 10, while at the junction of the finger and arm there extends an integral lip 11. A block 13 is pivotally secured to each of the standards 8 andis fixedly secured to one of the lips 11 by means of the rivets 1A which pass through the lips 11 and the block 13. Each of the links 5 is also provided with the pivotally secured block 15 as shown in Fig.1.

These blocks 15 are secured to the clips 16 j arms 9 as shown in Figs. 1 and 4. A clamping bolt 21 is passed through the opening 22 formed in the projection 20 of the clip 16 and also passes through the slot 23 formed in the arm 9. It will be seen that by the adjusting of this bolt 21 within the slot 23, that the rear end of the blade may be quickly and easily adjusted for tilting the forward end of the blade to a desired degree. Furthermore, the forward or rear end of each blade may be raised or lowered as desired by the moving of the link 5 or standard 8.

When this device is in use the blades are secured in an adjusted set position as shown in Fig. 1. As the cultivator is drawn forwardly the forward portions of each blade will pass between the weeds so as to allow the lower edges of the arm 9 and of the finger 10 to pass close to the upper surface of the ground or slightly beneath the upper surface of the ground so as to engage and cut the weeds adjacent the rows of plants which are being cultivated. It will be noted, however, that the fingers 10 are held at a spaced distance apart as clearly'shown in Fig. 1 so as to allow the plants to pass there- I said attachment comprising a plurality of V-shaped cutter blades, said cutter blades having comparatively long outer sides and relatively short inner sides, said short sides extending toward each other and being held at a spaced distance, supporting means fixedly secured within the forward portions of said blades for reinforcing the same, and a I means for adjustably holdingthe same in a set position for determining the depth to which said blades willdig. v i

2. In a device of the class described the combination of a supporting frame, a cultivatcr'attaohment adjustably secured to said,

supporting frame, said attachment comprising a pair of blades, each blade comprising a side arm terminating in a short finger extending at an acute angle thereto, an lnte- 1 v grallipextending upwardly from the ]unction" of said'arm and finger, said lip being adapted to be adjustably secured to said supporting frame, each of said arms pro vided with an elongated slot intermediate its ends, a clamping bolt passing through each slot, a clip adjustably secured by each bolt,

to which the blades will dig, said fingers ofsaid blade extending toward each other so as to be held in spaced relation. 7

In testimony whereof I hereunto affix my signaturein presence of two witnesses.

CLIFTON DOAK.

lVitnesses W. D. GUILIQJEDGE, J. B. BROMFILL.

, 'Gopies of this patent may, be obtained for five cents each', by addressing the Commissioner of Patents,

' Washington, D. 0. 

